ADAPTIVE MANUFACTURING USING STRUCTURED LIGHT DATA
20240083118 ยท 2024-03-14
Inventors
Cpc classification
B33Y10/00
PERFORMING OPERATIONS; TRANSPORTING
B33Y40/20
PERFORMING OPERATIONS; TRANSPORTING
F05D2230/80
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05D2230/233
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B29C64/393
PERFORMING OPERATIONS; TRANSPORTING
B23P6/007
PERFORMING OPERATIONS; TRANSPORTING
F01D5/005
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B22F10/25
PERFORMING OPERATIONS; TRANSPORTING
B23K1/20
PERFORMING OPERATIONS; TRANSPORTING
F05D2230/72
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F05D2230/237
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B33Y50/02
PERFORMING OPERATIONS; TRANSPORTING
B23K1/0056
PERFORMING OPERATIONS; TRANSPORTING
B23K35/0244
PERFORMING OPERATIONS; TRANSPORTING
F05D2230/30
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B23K26/0093
PERFORMING OPERATIONS; TRANSPORTING
International classification
B29C64/393
PERFORMING OPERATIONS; TRANSPORTING
B29C64/153
PERFORMING OPERATIONS; TRANSPORTING
B33Y10/00
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A method is disclosed for providing a component. During this method, braze powder is additively deposited with a substrate. The braze powder is sintered together during the depositing of the braze powder to provide the substrate with sintered braze material. The sintered braze material is heated to melt the sintered braze material and to diffusion bond the sintered braze material to the substrate to provide braze filler material. A first object is scanned using structured light to provide first object scan data. The first object includes the substrate and the braze filler material diffusion bonded to the substrate. The first object scan data is compared to first object reference data to provide machining data. The first object is machined using the machining data to provide a second object.
Claims
1. A method for providing a component, comprising: additively depositing braze powder with a substrate, the braze powder sintered together during the depositing of the braze powder to provide the substrate with sintered braze material; heating the sintered braze material to melt the sintered braze material and diffusion bond the sintered braze material to the substrate to provide braze filler material; scanning a first object using structured light to provide first object scan data, the first object comprising the substrate and the braze filler material diffusion bonded to the substrate; comparing the first object scan data to first object reference data to provide machining data; and machining the first object using the machining data to provide a second object.
2. The method of claim 1, wherein the structured light comprises structured white light.
3. The method of claim 1, wherein the structures light comprises structured blue light.
4. The method of claim 1, wherein the braze powder is deposited using an additive manufacturing device.
5. The method of claim 1, further comprising: scanning the substrate using structured light to provide substrate scan data; comparing the substrate scan data to substrate reference data to provide additive manufacturing data; and the braze powder deposited with the substrate based on the additive manufacturing data.
6. The method of claim 5, wherein the substrate reference data comprises data from a design specification for the component.
7. The method of claim 5, wherein the first object reference data comprises the substrate scan data.
8. The method of claim 1, wherein the depositing of the braze powder includes directing the braze powder towards the substrate through a nozzle; and sintering the braze powder using a laser beam.
9. The method of claim 8, wherein the laser beam is directed towards the substrate through an inner bore of the nozzle.
10. The method of claim 1, wherein the machining removes some of the braze filler material diffusion bonded to the substrate.
11. The method of claim 1, wherein the braze powder comprises metal alloy powder and braze material powder with a lower melting point than the metal alloy powder.
12. The method of claim 11, wherein the metal alloy powder and the substrate comprises a common metal alloy.
13. The method of claim 1, wherein the heating of the sintered braze material is performed in a vacuum furnace subsequent to the depositing of the braze powder.
14. The method of claim 1, wherein the braze powder is deposited with the substrate to form a cladding over the substrate.
15. The method of claim 1, further comprising: receiving a damaged component previously installed within an engine; and the depositing, the heating and the machining performed to repair the damaged component to provide the component.
16. The method of claim 1, further comprising depositing a coating on the second object.
17. A method for providing a component, comprising: scanning a substrate using a structured light device to provide substrate scan data; comparing the substrate scan data to substrate reference data to provide additive manufacturing data; depositing braze powder with the substrate using an additive manufacturing device based on the additive manufacturing data, the braze powder sintered to provide the substrate with sintered braze material; heating the sintered braze material to melt the sintered braze material and diffusion bond the sintered braze material to the substrate to provide braze filler material; scanning a first object using the structured light device to provide first object scan data, the first object comprising the substrate and the braze filler material diffusion bonded to the substrate; comparing the first object scan data to first object reference data to provide machining data; and machining the first object using the machining data to provide a second object.
18. The method of claim 17, wherein the substrate reference data comprises data from a specification for the component.
19. The method of claim 17, wherein the first object reference data comprises the substrate scan data.
20. A system for providing a component comprising a substrate, the system comprising: a scanning device configured to scan the substrate using structured light to provide substrate scan data indicative of one or more characteristics of the substrate, and the scanning device further configured to scan a first object using the structured light to provide first object scan data indicative of one or more characteristics of the first object; a controller configured to compare the substrate scan data to substrate reference data to provide additive manufacturing data, and the controller configured to compare the first object scan data to first object reference data to provide machining data; an additive manufacturing device configured to deposit braze powder with the substrate based on the additive manufacturing data, the braze powder sintered using a laser of the additive manufacturing device during the depositing of the braze powder to provide the substrate with sintered braze material; a furnace configured to melt the sintered braze material to facilitate diffusion bonding of the sintered braze material to the substrate to provide the first object; and a machining device configured to machine the first object based on the machining data.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0024]
[0025]
[0026]
[0027]
[0028]
DETAILED DESCRIPTION
[0029] The present disclosure includes systems and methods for adaptively manufacturing or otherwise providing a component. Herein, the term manufacturing may describe a process for forming the component; e.g., creating a brand new component. The term manufacturing may also or alternatively describe a process for overhauling (e.g., repairing) the component; e.g., restoring one or more features of a previously formed component to brand new condition, similar to brand new condition or better than brand new condition. The component, for example, may be overhauled to fix one or more defects (e.g., cracks, wear and/or other damage) imparted during previous use of the component. The component may also or alternatively be overhauled to fix one or more defects imparted during the initial formation of the component. For ease of description, however, the manufacturing systems and methods may be described below with respect to overhauling the component.
[0030] The component may be any stationary component within a hot section of the gas turbine engine; e.g., a combustor section, a turbine section or an exhaust section. Examples of the stationary component include, but are not limited to, a vane, a platform, a gas path wall, a liner and a shroud. The present disclosure, however, is not limited to stationary component applications. The engine component, for example, may alternatively be a rotor blade; e.g., a turbine blade. The present disclosure is also not limited to hot section engine components. For ease of description, however, the manufacturing systems and methods may be described below with respect to overhauling a gas turbine engine component such as a turbine vane or other stators within the turbine section.
[0031] The component may be included in various gas turbine engines. The component, for example, may be included in a geared gas turbine engine where a gear train connects one or more shafts to one or more rotors in a fan section, a compressor section and/or any other engine section. Alternatively, the component may be included in a direct-drive gas turbine engine configured without a gear train. The component may be included in a gas turbine engine configured with a single spool, with two spools, or with more than two spools. The gas turbine engine may be configured as a turbofan engine, a turbojet engine, a turboprop engine, a turboshaft engine, a propfan engine, a pusher fan engine or any other type of gas turbine engine. The gas turbine engine may alternatively be configured as an auxiliary power unit (APU) or an industrial gas turbine engine. The present disclosure therefore is not limited to any particular types or configurations of gas turbine engines. Furthermore, it is contemplated the manufacturing systems and methods of the present disclosure may alternatively be used to manufacture component(s) for non-gas turbine engine applications; e.g., for reciprocating piston internal combustion engine applications, for rotary internal combustion engine applications, etc.
[0032]
[0033] Referring to
[0034] The component support 34 is located within an internal build chamber 42 of the additive manufacturing device 24. This component support 34 is configured to support the component 22 within the build chamber 42. The component 22, for example, may be placed on top of the component support 34. The component 22 may also or alternatively be mounted to the component support 34 via a fixture, which fixture may arrange the component 22 in a fixed position and/or in a known spatial orientation within the build chamber 42.
[0035] The material reservoir 36 is configured to store a quantity of braze powder 44 formed from braze material. This material reservoir 36 is also configured to supply the braze powder 44 to the nozzle 38 during additive manufacturing device operation. Examples of the material reservoir 36 include, but are not limited to, a tank, a hopper and a bin.
[0036] The nozzle 38 is configured to deliver the braze powder 44 received from the material reservoir 36 to a substrate 46 of the component 22 during additive manufacturing device operation. More particularly, the nozzle 38 is configured to direct a (e.g., annular, conical) stream 48 of the braze powder 44 towards (e.g., to) a surface 50 of the substrate 46. The nozzle 38 of
[0037] The laser 40 is configured to generate a laser beam 62 for sintering the braze powder 44 delivered by the nozzle 38 together and to the substrate 46. Herein, the term sintering may describe a process for coalescing powder particles together into a (e.g., porous) mass by heating without (e.g., partial or complete) liquification of the powder. This is in contrast to, for example, a powder laser welding process where powder is melted to a liquid state (e.g., in a melt pool) by a laser beam and then solidified as a solid mass. The laser 40 of
[0038] Referring to
[0039] Referring to
[0040] The scanning device 30 of
[0041] The controller 32 may be implemented with a combination of hardware and software. The hardware may include at least one processing device 82 and a memory 84, which processing device 82 may include one or more single-core and/or multi-core processors. The hardware may also or alternatively include analog and/or digital circuitry other than that described above.
[0042] The memory 84 is configured to store software (e.g., program instructions) for execution by the processing device 82, which software execution may control and/or facilitate performance of one or more operations such as those described below. The memory 84 may be a non-transitory computer readable medium. For example, the memory 84 may be configured as or include a volatile memory and/or a nonvolatile memory. Examples of a volatile memory may include a random access memory (RAM) such as a dynamic random access memory (DRAM), a static random access memory (SRAM), a synchronous dynamic random access memory (SDRAM), a video random access memory (VRAM), etc. Examples of a nonvolatile memory may include a read only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a computer hard drive, etc.
[0043]
[0044] In step 402, referring to
[0045] In step 404, referring to
[0046] In step 406, the substrate 46 is scanned using structured light; e.g., structured white or blue light. The scanning device 30 of
[0047] In step 408, the substrate scan data is processed to provide additive manufacturing (AM) data. The controller 32 of
[0048] In step 410, referring to
[0049] The braze powder 44 may include a mixture of metal alloy powder (e.g., substrate powder) and braze material powder. The metal alloy powder may be selected to have a relatively high melting point and common (the same) or similar material properties as the substrate 46. The metal alloy powder, for example, may be made from a common (or a similar) material as the underlying substrate 46; e.g., an aluminum (Al) superalloy, a nickel (Ni) superalloy, a titanium (Ti) superalloy, etc. The braze material powder, on the other hand, may be selected to have a relatively low melting point, which is lower than the melting point of the metal alloy powder. The braze material powder, for example, may include a common or similar base element as the substrate 46 and/or the metal alloy powder (e.g., aluminum (Al), nickel (Ni) or titanium (Ti)) without the super alloying elements. The brazing powder may also include boron (B), silicon (Si) and/or other melting point suppressants which may help facilitate melting and diffusion of the metal alloy powder with the substrate 46. The present disclosure, however, is not limited to the foregoing exemplary braze materials.
[0050] The braze powder 44 may include various proportions of the metal alloy powder and the braze material powder. For example, the braze powder 44 may include more of the braze material powder than the metal alloy powder to fill voids within the substrate 46; e.g., to increase wettability, flowability and/or capillary penetration of the braze powder. On the other hand, the braze powder 44 may include more of the metal alloy powder than the braze material powder to form a cladding over the substrate 46. Still alternatively, the braze powder 44 may include the same amount of the metal alloy powder as the braze material powder.
[0051] In step 412, referring to
[0052] Following the heating step 412, braze filler material 88 (e.g., diffusion bonded braze material) of
[0053] In step 414, a first object 90 (e.g., the substrate 46 with the braze filler material 88) is scanned using structured light. The scanning device 30 of
[0054] In step 416, the first object scan data is processed to provide machining data. The controller 32 of
[0055] In step 418, referring to
[0056] In step 420, referring to
[0057] In some embodiments, referring to
[0058] In some embodiments, the braze powder 44 may be sintered using the laser beam 62. The present disclosure, however, is not limited to use of such an exemplary energy beam. The braze powder 44, for example, may alternatively be sintered using an electron beam provided by an electron beam source. Furthermore, multiple energy beams (e.g., laser beams and/or electron beams) may be used for sintering the braze powder 44. In addition or alternatively, multiple nozzles 38 may be used to deliver the braze powder 44.
[0059] A component manufactured using a typical additive laser deposition welding process may be subject to: internal stresses thermally induced by relatively high welding temperatures (e.g., temperatures high enough to melt the substrate material); thermally induced distortion and/or warping; and/or reduction in material density caused by, for example, dendritic voids. By contrast, sintering the braze powder 44 with the substrate 46 and then diffusion bonding the braze powder with the substrate 46 as described above subjects the substrate 46 to relatively low processing temperatures, compared to welding temperatures. The manufacturing methods of the present disclosure may thereby reduce or eliminate: thermally induced stresses; thermally induced distortion and/or warping; and/or reduction in material density associated with additive laser deposition welding techniques. The above laser braze cladding technique is also paired with the adaptive processing to reduce material consumption and/or require less post processing (e.g., machining, finishing, etc.) compared to traditional manual brazing techniques.
[0060] While various embodiments of the present disclosure have been described, it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the disclosure. For example, the present disclosure as described herein includes several aspects and embodiments that include particular features. Although these features may be described individually, it is within the scope of the present disclosure that some or all of these features may be combined with any one of the aspects and remain within the scope of the disclosure. Accordingly, the present disclosure is not to be restricted except in light of the attached claims and their equivalents.